Definition of extemporary in US English:

extemporary

adjective

  • Spoken or done without preparation.

    ‘an extemporary prayer’
    • ‘The judgment says what it says, and we are not going to say anything extemporary which modifies what we have said in the judgment.’
    • ‘It reflects the fact that it is a December 22 extemporary judgment, perhaps.’
    • ‘It is said that he was the first to introduce extemporary praying in public worship, an important development which took place at this time.’
    • ‘The format must be manipulated and contrived to prevent anything extemporary or natural from happening on the screen.’
    • ‘These are contrasted with ideas that are merely ‘arbitrary, rationalistic, or willed’, based on extemporary polemics.’
    • ‘An extemporary campaign organised on an Internet discussion forum resulted in a flood of complaints to the news station.’
    extempore, extemporaneous, impromptu, spontaneous, unscripted, ad lib, on-the-spot
    View synonyms

Origin

Late 16th century: from extempore, on the pattern of temporary.

Pronunciation

extemporary

/ikˈstempəˌrerē//ɪkˈstɛmpəˌrɛri/